Q2E1: Atomic Structure and Electron Configuration

Front

What is the noble gas (shorthand) electron configuration for a Sulfur atom?

Back

[Ne] 3s² 3p⁴

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings.

Front

What is the chemical formula for photosynthesis?

Back

6CO₂ + 6H₂O + Heat → C₆H₁₂O₆ + 6O₂

Front

What is a pure substance?

Back

A material with a constant composition that is homogeneous throughout.

Front

What is the significance of noble gas configurations in chemistry?

Back

They represent stable electron configurations that are often used to simplify the representation of electron arrangements.

Front

How do you determine if a substance is a pure substance?

Back

A pure substance has a uniform and definite composition, and it cannot be separated into other substances by physical means.

Front

What is the role of heat in endothermic reactions?

Back

Heat is absorbed from the surroundings to drive the reaction forward.

Front

What are the products of photosynthesis?

Back

Glucose (C₆H₁₂O₆) and oxygen (O₂).

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.